On certain hardware BIG-IP platforms, in version 15.1.x before 15.1.4 and 14.1.x before 14.1.3, virtual servers may stop responding while p…

published 2022-01-25 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-28122

cvss: 7.5; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 60%
public exploits: 0; none known

On certain hardware BIG-IP platforms, in version 15.1.x before 15.1.4 and 14.1.x before 14.1.3, virtual servers may stop responding while processing TCP traffic due to an issue in the SYN Cookie Protection feature. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.

Patch / fix

fixed in 11

f5 big-ip_access_policy_manager 14.1.3, 15.1.4
f5 big-ip_advanced_firewall_manager 14.1.3, 15.1.4
f5 big-ip_analytics 14.1.3, 15.1.4
f5 big-ip_application_acceleration_manager 14.1.3, 15.1.4
f5 big-ip_application_security_manager 14.1.3, 15.1.4
f5 big-ip_domain_name_system 14.1.3, 15.1.4
f5 big-ip_fraud_protection_service 14.1.3, 15.1.4
f5 big-ip_global_traffic_manager 14.1.3, 15.1.4
f5 big-ip_link_controller 14.1.3, 15.1.4
f5 big-ip_local_traffic_manager 14.1.3, 15.1.4
f5 big-ip_policy_enforcement_manager 14.1.3, 15.1.4

Exploit prediction

0.93% chance of exploitation in the next 30 days, higher than 60% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected products

n/a BIG-IP

Classification

Weakness

CWE-682 Incorrect Calculation

References

support.f5.com /csp/article/K68755210
mitigation, vendor-advisory

Sources

CVE List CVE-2022-23011
NVD CVE-2022-23011

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary